ENVALITH
株式会社ディ・アイ・システム logo

D.I.System Co., Ltd.

4421Standard MarketInformation & Communication

株式会社ディ・アイ・システム logo
D.I.System Co., Ltd.4421

System Integration

Core business of an independent SI provider capturing DX demand. Accounts for approximately 90% of revenue.

PeriodCurrentPreviousChange
Segment revenue (interim cumulative)¥3,429 million¥3,246 million
Segment profit (interim cumulative)¥744 million¥735 million
Segment revenue (full year, prior fiscal year actual)¥6,497 million
Segment profit (full year, prior fiscal year actual)¥1,283 million
Year-on-year revenue growth rate (interim period)+5.6%
Year-on-year segment profit growth rate (interim period)+1.3%

Business Details

Provides a one-stop service covering business application design and development, infrastructure system design and construction, and operation and maintenance. Serves a wide range of industries including IT/telecommunications, finance, distribution, healthcare, and government, with end users, information systems subsidiaries, telecom operators, and peer SI firms as customers. Leveraging its independent position, the company proposes optimal solutions to client needs, ranging from scratch development to package utilization. In January 2026, the company made M.I.C Corporation a subsidiary, strengthening its business network in the western Japan area.

Recent Overview

Acquired a western Japan base through M&A; revenue increased, but profit margin trended downward due to growth investments

Effective January 1, 2026, the company made M.I.C Corporation, which has a business base in Yamaguchi and Hiroshima prefectures, a wholly owned subsidiary for ¥200 million (goodwill of ¥80 million, amortization period of 10 years), aiming to strengthen its business network in the western Japan area. Segment revenue for the current interim period reached ¥3,429 million (up 5.6% year on year), securing revenue growth, but consolidated operating profit fell significantly to ¥160 million (down 25.3% year on year) due to an increase in SG&A expenses (¥608 million compared to ¥537 million in the same period of the prior year) associated with growth investments such as improved employee treatment, expansion of the Osaka office, headquarters relocation, and expansion of the internal IT environment.

Key Products

service
Business Application Design & Development Service

Handles the design through development of business applications for a wide range of industries including IT/telecommunications, finance, distribution, healthcare, and government. Provides optimal proposals tailored to client needs, from scratch development to package utilization.

service
Infrastructure System Design & Construction Service

Captures infrastructure development demand accompanying corporate DX promotion, including server and core system replacement and data migration associated with cloud storage adoption. Inquiries for large-scale projects are increasing, and the company is strengthening its response capacity by utilizing business partners.

service
Operation & Maintenance Service

Operation and maintenance work supporting the stable operation of systems after construction. Functions as a stable, continuous revenue base and contributes to building long-term relationships with clients.

service
Targeted Email Attack Training Service

A training service aimed at improving employees' response capabilities against targeted email attacks. It continued to perform steadily in the current interim period, following the previous consolidated fiscal year.

product
Rakuraku WorkflowⅡ / Rakuraku Framework3 / COMPANY

Inquiries via the company's website regarding Rakuraku WorkflowⅡ (an electronic approval/decision-making system), Rakuraku Framework3 (a purely domestic low-code development platform), and COMPANY (a cloud-based integrated HR system) have been trending upward, contributing to the acquisition of prime contractor projects.

Growth Drivers

  • Increase in server replacement, core system replacement, and cloud migration projects driven by DX promotion triggered by the "2025 Digital Cliff"
  • Robust demand for IT investment aimed at utilizing generative AI
  • Increased acquisition of prime contractor projects and new clients through enhanced web marketing
  • Increased inquiries for large-scale projects and strengthened response capacity through utilization of business partners
  • Gaining customer trust through quality improvement by a dedicated quality management team
  • Increased inquiries for package products such as Rakuraku WorkflowⅡ, Rakuraku Framework3, and COMPANY
  • Strengthened business network in the western Japan area (Kansai, Sanyo, Kyushu) through the acquisition of M.I.C Corporation as a subsidiary

Risks

  • Intensifying recruitment competition and upward pressure on personnel costs due to IT talent shortages
  • Difficulty securing business partners (outsourced engineers) and rising outsourcing costs
  • Risk of reduced IT investment by client companies due to deteriorating business performance (effects of yen depreciation, energy price hikes, etc.)
  • Downside risk to the domestic economy from geopolitical risk and uncertainty over US trade policy
  • Project management and quality risks associated with the increase in large-scale projects
  • Short-term decline in profit margin due to growth investments (headquarters relocation, internal IT investment, talent development, M&A-related expenses)
  • Integration risk related to the M&A target (M.I.C Corporation) and goodwill amortization burden

Last updated: December 23, 2025